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STRUCTURES

BRIDGES

TermDefinition
Abutment supports at the end of an arch bridge that carry the lad and keep the ends from spreading out.
spandrels Vertical supports of an arch bridge used to distribute the weight of the road to the arch below.
Anchorages securing devices that are embedded in the solid rock or massive concrete blocks that spread cables over a large area to evenly distribute the load and prevent the cables from breaking free.
Span the distance between two bridge supports.
compression a force that act to compress or shorten the thing it is acting on.
Tension a force that acts to expand or legthen the thing it is acting on.
buckling what happens when the force of compression over comes an object's ability to handle compression.
Snapping what happens when tension overcomes an object's ability to handle tension.
dissipate to spread force over a greater area so that no one spot has to bear the brunt of the concentrated force.
transfer to move force from an area of weakness to an area of strength.
truss supporting lattice work added to create very all beams that added rigidity to an existing beam greatly increasing its ability to dissipate the compression and tension.
torsion a rotation or twisting force.
Resonance a fatal force to a bridge that is a vibration caused by an extended force that is in harmony whit the natural vibration of the original thing. Resonance vibrations travel through a bridge in waves.
dampeners a technique used to interrupt the resonant waves.
Deck-stiffening trusses a supporting truss system beneath the bridge deck.
Created by: 381556
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